Protection of Metals and Physical Chemistry of Surfaces · 2018 · 54 citations · 56 references
Natural SciencesMaterials EngineeringMaterials ScienceCorrosion ScienceSurface ScienceTheoretical ChemistryCorrosion InhibitorsCorrosion Of SteelsCorrosion ProtectionCorrosion ResistanceCorrosion-resistant MaterialsElectrochemical CorrosionCorrosion Inhibition AssessmentCorrosion Inhibitor EffectsCorrosion Inhibitor EvaluationCorrosion Inhibitor KineticsCorrosion Inhibitor TestingCorrosion Inhibitor ThermodynamicsCorrosion Inhibitors For Carbon SteelOrganic Corrosion Inhibitors
Abstract The effect of a new synthesized bis-pyrazoline derivative namely: 5,5'-(1,4-phenylene) bis [1‑formyl-4,5-dihydro-3-phenyl-1H pyrazole] (Bis-Pyr) on carbon steel corrosion in 1M HCl was investigated using weight loss, potentiodynamic polarization and EIS measurement. DFT calculation and molecular dynamics simulation were used to confirm the experimental results. The results showed that inhibition efficiency of the (Bis-Pyr) compound increases with the increase of its concentration and acts as a mixed type inhibitor, e.i affecting both anodic and cathodic reactions. The adsorption of the compound on steel surface is both physical and chemical adsorptions and follows Langmuir isotherm. The surface morphology of the steel surface was carried out by scanning electron microscopy (SEM). The data obtained from theoretical and experimental studies were in reasonable agreement.
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<b>Hard and Soft Acids and Bases</b>
Ralph G. Pearson · Journal of the American Chemical Society · 1963 · 10.2K citations
Corrosion Inhibitors—Correlation Between Electronic Structure and Efficiency